[PD-cvs] externals/pdp/opengl/include Makefile, 1.2, 1.3 pdp_3Dcontext.h, 1.2, 1.3 pdp_3dp_base.h, 1.2, 1.3 pdp_mesh.h, 1.2, 1.3 pdp_opengl.h, 1.2, 1.3 pdp_texture.h, 1.2, 1.3
Hans-Christoph Steiner
eighthave at users.sourceforge.net
Fri Dec 16 02:05:37 CET 2005
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Update of /cvsroot/pure-data/externals/pdp/opengl/include
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv6756/opengl/include
Added Files:
Makefile pdp_3Dcontext.h pdp_3dp_base.h pdp_mesh.h
pdp_opengl.h pdp_texture.h
Log Message:
checking in pdp 0.12.4 from http://zwizwa.fartit.com/pd/pdp/pdp-0.12.4.tar.gz
--- NEW FILE: pdp_mesh.h ---
/*
* Pure Data Packet module. mesh object specification
* Copyright (c) by Tom Schouten <pdp at zzz.kotnet.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/* a very naive approach to triangular meshes */
#ifndef PDP_MESH_H
#define PDP_MESH_H
#include "pdp_list.h"
/* VERTEX type
a vertex has a coordinate and normal vector
a list of triangles it is connected to
and a list of vertexes it is connected to (these count as links) */
typedef struct _vertex
{
float c[3]; // coordinates
float n[3]; // normal (or force vector)
t_pdp_list *trilist;
t_pdp_list *vertlist;
} t_vertex;
/* TRIANGLE type:
a triangle consist of
- 3 vertices
- 3 optional median vertices (subdivision intermediates) */
typedef struct _triangle
{
t_vertex *v[3]; // vertices
t_vertex *m[3]; // median vertices
float n[3]; //triangle normal
} t_triangle;
/* MESH type:
a mesh is a list of vertices
and a list of triangles (connections) */
typedef struct _mesh
{
t_pdp_list *triangles;
t_pdp_list *vertices;
int normal_type;
int refine_type;
} t_mesh;
/* object configuratie */
#define MESH_NORMAL_SPHERE 1 // normal = origin -> vertex
#define MESH_NORMAL_PRISM 2 // normal = center of gravity of prism base -> vertex
#define MESH_NORMAL_RANDOM 3 // normal = random vector
#define MESH_NORMAL_AVERAGE 4 // normal = average of surrounding triangles
/* refinement method */
#define MESH_REFINE_THREE 1 // triangle -> 3 triangles connecting center of gravity
#define MESH_REFINE_FOUR 2 // triangle -> 4 triangles connecting link medians
// vector utility stuff
// fixed size iterators for the lazy
#define I3(i) for(i=0; i<3; i++)
#define I4(i) for(i=0; i<4; i++)
static inline float _vector3_dot(float *v0, float *v1)
{
float d;
d = v0[0] * v1[0];
d += v0[1] * v1[1];
d += v0[2] * v1[2];
return d;
}
static inline void _vector3_scale(float *v, float s)
{
int k;
I3(k) v[k] *= s;
}
static inline float _vector3_normalize(float *v)
{
float length = 0;
float scale = 0;
int k;
length = sqrt(_vector3_dot(v,v));
scale = 1.0f / length;
_vector3_scale(v, scale);
return length;
}
static inline void _vector3_cross(float *a, float *b, float *r)
{
r[0] = a[1]*b[2] - a[2]*b[1];
r[1] = a[2]*b[0] - a[0]*b[2];
r[2] = a[0]*b[1] - a[1]*b[0];
}
static inline float _rand(void)
{
long int r = random();
float f;
r -= (RAND_MAX >> 1);
f = (float)r;
f *= (2.0f / (float)RAND_MAX);
return f;
}
/* VERTEX methods */
void vertex_add_triangle(t_vertex *v, t_triangle *t);
void vertex_remove_triangle(t_vertex *v, t_triangle *t);
void vertex_add_neighbour(t_vertex *v, t_vertex *neighbour);
/* constructor/destructors are "private"
they may only be called by the mesh object to ensure
the vector list stays sound (i.e. without duplicates) */
void _vertex_free(t_vertex *v);
t_vertex *_vertex_new(float *c, float *n);
void vertex_compute_normal_random(t_vertex *v);
void vertex_compute_normal_sphere(t_vertex *v);
void vertex_compute_normal_prism(t_vertex *v);
float vertex_normalize(t_vertex *v);
/* TRIANGLE methods */
/* create triangle (a connection between 3 vertices):
counterclockwize with facing front
this method is "private"
you can only create triangles as part of a mesh */
t_triangle *_triangle_new(t_vertex *v0, t_vertex *v1, t_vertex *v2);
/* delete a triangle, disconnecting the vertices */
void _triangle_free(t_triangle *t);
/* get triangle that shares the link between v0 and v1 */
t_triangle *triangle_neighbour(t_triangle *t, t_vertex *v0, t_vertex *v1);
/* add a median vector to a link in a triangle
note: vertices must be in triangle, or behaviour is undefined */
void triangle_add_median(t_triangle *t, t_vertex *v0, t_vertex *v1, t_vertex *median);
/* MESH methods */
/* add and remove methods for vertices and triangles */
t_vertex *mesh_vertex_add(t_mesh *m, float *c, float *n);
void mesh_vertex_remove(t_mesh *m, t_vertex *v);
t_triangle *mesh_triangle_add(t_mesh *m, t_vertex *v0, t_vertex *v1, t_vertex *v2);
void mesh_triangle_remove(t_mesh *m, t_triangle *t);
/* calculate normals */
void mesh_calculate_normals(t_mesh *m);
/* split a triangle in 4, using the intermedia median vertex storage */
void mesh_split_four(t_mesh *m, t_triangle *old_t);
/* split a triangle in 3 */
void mesh_split_three(t_mesh *m, t_triangle *old_t);
void mesh_split_all_four(t_mesh *m);
void mesh_split_all_three(t_mesh *m);
void mesh_split_random_three(t_mesh *m);
void mesh_free(t_mesh *m);
t_mesh *_mesh_new(void);
/* new tetra */
t_mesh *mesh_new_tetra(void);
void _mesh_relax_compute_resultant_spring(t_mesh *m, float *center, float d0, float r0);
void _mesh_relax_apply_force(t_mesh *m, float k);
void mesh_compute_center(t_mesh *m, float *c);
void mesh_translate(t_mesh *m, float *c);
/* relax a mesh (move toward equal link length) */
void mesh_relax(t_mesh *m, float step, float d0, float r0);
/* print some debug information */
void mesh_debug(t_mesh *m);
#endif
--- NEW FILE: Makefile ---
all:
clean:
rm -rf *~
--- NEW FILE: pdp_3dp_base.h ---
#include "pdp_opengl.h"
#include "pdp_dpd_base.h"
typedef struct _pdp_3dp_base
{
t_pdp_dpd_base b_base;
} t_pdp_3dp_base;
/* destructor */
void pdp_3dp_base_free(void *x);
/* init method */
void pdp_3dp_base_init(void *x);
/* class setup method */
void pdp_3dp_base_setup(t_class *class);
/* base class methods */
#define pdp_3dp_base_get_context_packet pdp_dpd_base_get_context_packet
#define pdp_3dp_base_set_context_packet pdp_dpd_base_set_context_packet
#define pdp_3dp_base_add_outlet pdp_dpd_base_add_outlet
#define pdp_3dp_base_add_cleanup pdp_dpd_base_add_cleanup
#define pdp_3dp_base_add_inspect pdp_dpd_base_add_inspect
#define pdp_3dp_base_disable_active_inlet pdp_dpd_base_disable_active_inlet
#define pdp_3dp_base_move_context_packet pdp_dpd_base_move_context_packet
#define pdp_3dp_base_bang pdp_dpd_base_bang
#define pdp_3dp_base_get_queue pdp_dpd_base_get_queue
#define pdp_3dp_base_enable_outlet pdp_dpd_base_enable_outlet
#define pdp_3dp_base_register_complete_notify pdp_dpd_base_register_complete_notify
#define pdp_3dp_base_register_get_command_object pdp_dpd_base_register_get_command_object
#define pdp_3dp_base_queue_wait pdp_dpd_base_queue_wait
#define pdp_3dp_base_queue_command pdp_dpd_base_queue_command
--- NEW FILE: pdp_opengl.h ---
/*
* OpenGL Extension Module for pdp - Main header file
* Copyright (c) by Tom Schouten <pdp at zzz.kotnet.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef PDP_OPENGL_H
#define PDP_OPENGL_H
#include "pdp.h"
#include "pdp_texture.h"
#include "pdp_3Dcontext.h"
t_pdp_procqueue* pdp_opengl_get_queue(void);
#endif
--- NEW FILE: pdp_3Dcontext.h ---
/*
* pdp system module - 3d render context packet type
* Copyright (c) by Tom Schouten <pdp at zzz.kotnet.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/* the 3d render context packet: platform independent data structure
and method prototypes */
#ifndef PDP_3DCONTEXT_H
#define PDP_3DCONTEXT_H
#include "pdp.h"
typedef struct _3dcontext
{
u32 encoding; /* the kind of render context */
u32 width; /* context width */
u32 height; /* context height */
u32 sub_width; /* portion that is currently used */
u32 sub_height;
void *drawable; /* context's drawable (i.e. Window, GLXPbuffer, ...) */
void *context; /* context's context object */
} t_3Dcontext;
#define PDP_3DCONTEXT 5 /* 3d context packet id */
#define PDP_3DCONTEXT_WINDOW 1 /* window context packet id */
#define PDP_3DCONTEXT_PBUFFER 2 /* pbuf context packet id */
/* all symbols are C-style */
#ifdef __cplusplus
extern "C"
{
#endif
/* info methods */
u32 pdp_packet_3Dcontext_width(int packet);
u32 pdp_packet_3Dcontext_subwidth(int packet);
u32 pdp_packet_3Dcontext_height(int packet);
u32 pdp_packet_3Dcontext_subheight(int packet);
float pdp_packet_3Dcontext_subaspect(int packet);
int pdp_packet_3Dcontext_isvalid(int packet);
t_3Dcontext *pdp_packet_3Dcontext_info(int packet);
/* setters */
void pdp_packet_3Dcontext_set_subwidth(int packet, u32 w);
void pdp_packet_3Dcontext_set_subheight(int packet, u32 h);
/* render context activation and initialization */
void pdp_packet_3Dcontext_set_rendering_context(int packet);
void pdp_packet_3Dcontext_unset_rendering_context(int packet);
void pdp_packet_3Dcontext_setup_3d_context(int p);
void pdp_packet_3Dcontext_setup_2d_context(int p);
/* constructors */
int pdp_packet_new_3Dcontext_pbuf(u32 width, u32 height, u32 depth);
int pdp_packet_new_3Dcontext_win(void);
/* window specific methods */
void pdp_packet_3Dcontext_win_resize(int packet, int width, int height);
t_pdp_list *pdp_packet_3Dcontext_win_get_eventlist(int packet);
void pdp_packet_3Dcontext_win_cursor(int packet, bool toggle);
void pdp_packet_3Dcontext_win_swapbuffers(int packet);
/* converters */
int pdp_packet_3Dcontext_snap_to_bitmap(int packet, int w, int h);
#ifdef __cplusplus
}
#endif
#endif
--- NEW FILE: pdp_texture.h ---
/*
* pdp system module - texture packet type
* Copyright (c) by Tom Schouten <pdp at zzz.kotnet.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef PDP_TEXTURE_H
#define PDP_TEXTURE_H
//#include <GL/gl.h>
//#include <GL/glu.h>
//#include <GL/glx.h>
//#include <GL/glut.h>
#include "pdp.h"
/* TEXTURE PACKET */
typedef struct
{
u32 tex_obj; /* gl texture object */
s32 format; /* texture format */
u32 width; /* dims */
u32 height;
u32 sub_width; /* portion of texture used */
u32 sub_height;
} t_texture;
#define PDP_TEXTURE 4 /* opengl texture object */
/* all symbols are C-style */
#ifdef __cplusplus
extern "C"
{
#endif
/* check if valid texture packet. all other methods assume packet is valid */
bool pdp_packet_texture_isvalid(int packet);
/* returns a pointer to the packet subheader whem the packet contains a texture */
/* try not to use the header directly, use clone and copy methods instead */
t_texture *pdp_packet_texture_info(int packet);
/* texture constructors */
int pdp_packet_new_texture(u32 width, u32 height, s32 format); /* create a texture packet */
/* texture operators */
void pdp_packet_texture_make_current(int packet); /* make a texture the current texture context */
u32 pdp_packet_texture_total_width(int packet); /* width of texture */
u32 pdp_packet_texture_total_height(int packet); /* get heigth of texture */
u32 pdp_packet_texture_sub_width(int packet); /* width of subtexture */
u32 pdp_packet_texture_sub_height(int packet); /* heigth of subtexture */
float pdp_packet_texture_fracx(int packet); /* x fraction */
float pdp_packet_texture_fracy(int packet); /* y fraction */
float pdp_packet_texture_sub_aspect(int packet);
/* some utility methods */
void pdp_packet_texture_make_current_enable(int packet); /* make current & enable with default texture settings (for the lazy)*/
void pdp_packet_texture_setup_2d_context(int packet); /* set up 2d context (viewport, projection, modelview) from texture dims */
#ifdef __cplusplus
}
#endif
#endif //PDP_TEXTURE_H
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